* Haig, D. & Westoby, M. (1991) Genomic imprinting in endosperm: its effects on seed development in crosses between species and between different ploidies of the same species, and its implications for the evolution of apomixis. Philosophical Transactions of the Royal Society of London B 333: 1-13. .pdf

Karumanchi, S. A. & Haig, D. (2008) Flt1, pregnancy, and malaria: evolution of a complex interaction. Proceedings of the National Academy of Sciences of the United States of America 105: 14243-14244. .pdf